#!/usr/bin/env bash
set -e

# 1. 准备依赖
sudo apt-get update
sudo apt-get install -y ca-certificates curl gnupg

# 2. 添加 Docker GPG key
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | \
  sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg

# 3. 添加 Docker Ubuntu 源（注意这里是 ubuntu，不是 debian）
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
  https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" \
  | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# 4. 更新索引并安装 Docker
sudo apt-get update
sudo apt-get install -y \
  docker-ce docker-ce-cli containerd.io \
  docker-buildx-plugin docker-compose-plugin